import { LiveExecutionResult } from "@n1ru4l/graphql-live-query";
import { Repeater } from "@repeaterjs/repeater";
import type { ExecutionResult } from "graphql";
import type { ExecutionPatchResult } from "./ExecutionPatchResult.js";
import type { ExecutionLivePatchResult } from "./ExecutionLivePatchResult.js";
/**
 * Symbol that indicates that there is no diff between the previous and current state and thus no patch must be sent to the client.
 * This value should be returned from GeneratePatchFunction.
 */
export declare const noDiffSymbol: unique symbol;
export declare type GeneratePatchFunction<PatchPayload = unknown> = (previous: Record<string, unknown>, current: Record<string, unknown>) => PatchPayload | typeof noDiffSymbol;
export declare const createLiveQueryPatchGenerator: <PatchPayload = unknown>(generatePatch: GeneratePatchFunction<PatchPayload>) => (source: AsyncIterableIterator<LiveExecutionResult>) => Repeater<ExecutionResult<import("graphql/jsutils/ObjMap").ObjMap<unknown>, import("graphql/jsutils/ObjMap").ObjMap<unknown>> | ExecutionLivePatchResult<unknown> | ExecutionPatchResult<{
    [key: string]: any;
}, {
    [key: string]: any;
}>, any, unknown>;